LT3653
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LT3653

1.2A, HV Input Regulator with Output Current Limit for Battery Charger Applications

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Info: : PRODUCTION tooltip
Info: : PRODUCTION tooltip
Part Details
Part Models 4
1ku List Price Starting From $3.01
Features
  • Wide Input Range:
    • Operation from 7.5V to 30V
    • Overvoltage Lockout Protects Circuit Through 60V Transients
  • Operates with LTC Bat-Track Li-Ion Battery Chargers to Maximize Efficiency
  • No Reverse Discharge Path from VOUT to VIN
  • Programmable Output Current Limit
  • Integrated BOOST Diode
  • Thermal Protection
  • Small Application Size
  • Thermally Enhanced 2mm × 3mm DFN Package
Additional Details
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The LT3653 is a monolithic current mode PWM step-down regulator with programmable output current limit. Typically, it is used with battery charger power path controllers to pre-regulate the output and optimize the battery charger efficiency. Output current limit provides accurate control over system power dissipation.

The wide operating input voltage range of 7.5V to 30V suits the LT3653 to a variety of input sources, including unregulated 12V wall adapters, 24V industrial supplies, Firewire and automotive power. Input overvoltage protection allows the LT3653 to handle 60V input transients.

The LT3653 control pin, VC, is available for external battery tracking control, Bat-Track. The LT3653 will block output discharge during an open or shorted input.

The HVOK pin indicates that the internal bias supplies are present and no faults have occurred (i.e., overtemperature and input overvoltage and undervoltage). The LT3653 includes a 1.5MHz frequency oscillator, internal compensation, and an internal boost diode to minimize the number of external components. The LT3653 is available in an 8-lead (2mm × 3mm) package with exposed pads for low thermal resistance.

Applications

  • Battery Powered Equipment
  • Portable USB Devices – Cameras, MP3 Players, PDAs
  • Automotive Battery Regulation
  • Multiple-Source Battery Chargers
Part Models 4
1ku List Price Starting From $3.01

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
LT3653EDCB#TRMPBF
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LT3653EDCB#TRPBF
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LT3653IDCB#TRMPBF
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LT3653IDCB#TRPBF
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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DC1325A

LT3653EDCB Demo Board | 1.2A, HV Input Pre-Regulator with Output Current Limit for Battery Charger Application

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DC1325A

LT3653EDCB Demo Board | 1.2A, HV Input Pre-Regulator with Output Current Limit for Battery Charger Application

LT3653EDCB Demo Board | 1.2A, HV Input Pre-Regulator with Output Current Limit for Battery Charger Application

Product Detail

DC1325A: Demo Board for LT3653 1.2A, HV Input Regulator with Output Current Limit for Battery Charger Applications

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